/*!
 * jQuery Validation Plugin v1.14.0
 *
 * http://jqueryvalidation.org/
 *
 * Copyright (c) 2015 Jörn Zaefferer
 * Released under the MIT license
 */
(function(factory) {
	if (typeof define === "function" && define.amd) {
		define([ "jquery" ], factory);
	} else {
		factory(jQuery);
	}
}(function($) {

	$.extend($.fn, {
		// http://jqueryvalidation.org/validate/
		validate : function(options) {

			// if nothing is selected, return nothing; can't chain anyway
			if (!this.length) {
				if (options && options.debug && window.console) {
					console.warn("Nothing selected, can't validate, returning nothing.");
				}
				return;
			}

			// check if a validator for this form was already created
			var validator = $.data(this[0], "validator");
			if (validator) {
				return validator;
			}

			// Add novalidate tag if HTML5.
			this.attr("novalidate", "novalidate");

			validator = new $.validator(options, this[0]);
			$.data(this[0], "validator", validator);

			if (validator.settings.onsubmit) {

				this.on("click.validate", ":submit", function(event) {
					if (validator.settings.submitHandler) {
						validator.submitButton = event.target;
					}

					// allow suppressing validation by adding a cancel class to the submit button
					if ($(this).hasClass("cancel")) {
						validator.cancelSubmit = true;
					}

					// allow suppressing validation by adding the html5 formnovalidate attribute to the submit button
					if ($(this).attr("formnovalidate") !== undefined) {
						validator.cancelSubmit = true;
					}
				});

				// validate the form on submit
				this.on("submit.validate", function(event) {
					if (validator.settings.debug) {
						// prevent form submit to be able to see console output
						event.preventDefault();
					}
					function handle() {
						var hidden, result;
						if (validator.settings.submitHandler) {
							if (validator.submitButton) {
								// insert a hidden input as a replacement for the missing submit button
								hidden = $("<input type='hidden'/>").attr("name", validator.submitButton.name).val($(validator.submitButton).val()).appendTo(validator.currentForm);
							}
							result = validator.settings.submitHandler.call(validator, validator.currentForm, event);
							if (validator.submitButton) {
								// and clean up afterwards; thanks to no-block-scope, hidden can be referenced
								hidden.remove();
							}
							if (result !== undefined) {
								return result;
							}
							return false;
						}
						return true;
					}

					// prevent submit for invalid forms or custom submit handlers
					if (validator.cancelSubmit) {
						validator.cancelSubmit = false;
						return handle();
					}
					if (validator.form()) {
						if (validator.pendingRequest) {
							validator.formSubmitted = true;
							return false;
						}
						return handle();
					} else {
						validator.focusInvalid();
						return false;
					}
				});
			}

			return validator;
		},
		// http://jqueryvalidation.org/valid/
		valid : function() {
			var valid, validator, errorList;

			if ($(this[0]).is("form")) {
				valid = this.validate().form();
			} else {
				errorList = [];
				valid = true;
				validator = $(this[0].form).validate();
				this.each(function() {
					valid = validator.element(this) && valid;
					errorList = errorList.concat(validator.errorList);
				});
				validator.errorList = errorList;
			}
			return valid;
		},

		// http://jqueryvalidation.org/rules/
		rules : function(command, argument) {
			var element = this[0], settings, staticRules, existingRules, data, param, filtered;

			if (command) {
				settings = $.data(element.form, "validator").settings;
				staticRules = settings.rules;
				existingRules = $.validator.staticRules(element);
				switch (command) {
					case "add":
						$.extend(existingRules, $.validator.normalizeRule(argument));
						// remove messages from rules, but allow them to be set separately
						delete existingRules.messages;
						staticRules[element.name] = existingRules;
						if (argument.messages) {
							settings.messages[element.name] = $.extend(settings.messages[element.name], argument.messages);
						}
						break;
					case "remove":
						if (!argument) {
							delete staticRules[element.name];
							return existingRules;
						}
						filtered = {};
						$.each(argument.split(/\s/), function(index, method) {
							filtered[method] = existingRules[method];
							delete existingRules[method];
							if (method === "required") {
								$(element).removeAttr("aria-required");
							}
						});
						return filtered;
				}
			}

			data = $.validator.normalizeRules($.extend({}, $.validator.classRules(element), $.validator.attributeRules(element), $.validator.dataRules(element), $.validator.staticRules(element)), element);

			// make sure required is at front
			if (data.required) {
				param = data.required;
				delete data.required;
				data = $.extend({
					required : param
				}, data);
				$(element).attr("aria-required", "true");
			}

			// make sure remote is at back
			if (data.remote) {
				param = data.remote;
				delete data.remote;
				data = $.extend(data, {
					remote : param
				});
			}

			return data;
		}
	});

	// Custom selectors
	$.extend($.expr[":"], {
		// http://jqueryvalidation.org/blank-selector/
		blank : function(a) {
			return !$.trim("" + $(a).val());
		},
		// http://jqueryvalidation.org/filled-selector/
		filled : function(a) {
			return !!$.trim("" + $(a).val());
		},
		// http://jqueryvalidation.org/unchecked-selector/
		unchecked : function(a) {
			return !$(a).prop("checked");
		}
	});

	// constructor for validator
	$.validator = function(options, form) {
		this.settings = $.extend(true, {}, $.validator.defaults, options);
		this.currentForm = form;
		this.init();
	};

	// http://jqueryvalidation.org/jQuery.validator.format/
	$.validator.format = function(source, params) {
		if (arguments.length === 1) {
			return function() {
				var args = $.makeArray(arguments);
				args.unshift(source);
				return $.validator.format.apply(this, args);
			};
		}
		if (arguments.length > 2 && params.constructor !== Array) {
			params = $.makeArray(arguments).slice(1);
		}
		if (params.constructor !== Array) {
			params = [ params ];
		}
		$.each(params, function(i, n) {
			source = source.replace(new RegExp("\\{" + i + "\\}", "g"), function() {
				return n;
			});
		});
		return source;
	};

	$.extend($.validator, {

		defaults : {
			messages : {},
			groups : {},
			rules : {},
			errorClass : "error",
			validClass : "valid",
			errorElement : "label",
			focusCleanup : false,
			focusInvalid : true,
			errorContainer : $([]),
			errorLabelContainer : $([]),
			onsubmit : true,
			ignore : ":hidden",
			ignoreTitle : false,
			onfocusin : function(element) {
				this.lastActive = element;

				// Hide error label and remove error class on focus if enabled
				if (this.settings.focusCleanup) {
					if (this.settings.unhighlight) {
						this.settings.unhighlight.call(this, element, this.settings.errorClass, this.settings.validClass);
					}
					this.hideThese(this.errorsFor(element));
				}
			},
			onfocusout : function(element) {
				if (!this.checkable(element) && (element.name in this.submitted || !this.optional(element))) {
					this.element(element);
				}
			},
			onkeyup : function(element, event) {
				// Avoid revalidate the field when pressing one of the following keys
				// Shift => 16
				// Ctrl => 17
				// Alt => 18
				// Caps lock => 20
				// End => 35
				// Home => 36
				// Left arrow => 37
				// Up arrow => 38
				// Right arrow => 39
				// Down arrow => 40
				// Insert => 45
				// Num lock => 144
				// AltGr key => 225
				var excludedKeys = [ 16, 17, 18, 20, 35, 36, 37, 38, 39, 40, 45, 144, 225 ];

				if (event.which === 9 && this.elementValue(element) === "" || $.inArray(event.keyCode, excludedKeys) !== -1) {
					return;
				} else if (element.name in this.submitted || element === this.lastElement) {
					this.element(element);
				}
			},
			onclick : function(element) {
				// click on selects, radiobuttons and checkboxes
				if (element.name in this.submitted) {
					this.element(element);

					// or option elements, check parent select in that case
				} else if (element.parentNode.name in this.submitted) {
					this.element(element.parentNode);
				}
			},
			highlight : function(element, errorClass, validClass) {
				if (element.type === "radio") {
					this.findByName(element.name).addClass(errorClass).removeClass(validClass);
				} else {
					$(element).addClass(errorClass).removeClass(validClass);
				}
			},
			unhighlight : function(element, errorClass, validClass) {
				if (element.type === "radio") {
					this.findByName(element.name).removeClass(errorClass).addClass(validClass);
				} else {
					$(element).removeClass(errorClass).addClass(validClass);
				}
			}
		},

		// http://jqueryvalidation.org/jQuery.validator.setDefaults/
		setDefaults : function(settings) {
			$.extend($.validator.defaults, settings);
		},

		messages : {
			required : "This field is required.",
			remote : "Please fix this field.",
			email : "Please enter a valid email address.",
			url : "Please enter a valid URL.",
			date : "Please enter a valid date.",
			dateISO : "Please enter a valid date ( ISO ).",
			number : "Please enter a valid number.",
			digits : "Please enter only digits.",
			creditcard : "Please enter a valid credit card number.",
			equalTo : "Please enter the same value again.",
			maxlength : $.validator.format("Please enter no more than {0} characters."),
			minlength : $.validator.format("Please enter at least {0} characters."),
			rangelength : $.validator.format("Please enter a value between {0} and {1} characters long."),
			range : $.validator.format("Please enter a value between {0} and {1}."),
			max : $.validator.format("Please enter a value less than or equal to {0}."),
			min : $.validator.format("Please enter a value greater than or equal to {0}.")
		},

		autoCreateRanges : false,

		prototype : {

			init : function() {
				this.labelContainer = $(this.settings.errorLabelContainer);
				this.errorContext = this.labelContainer.length && this.labelContainer || $(this.currentForm);
				this.containers = $(this.settings.errorContainer).add(this.settings.errorLabelContainer);
				this.submitted = {};
				this.valueCache = {};
				this.pendingRequest = 0;
				this.pending = {};
				this.invalid = {};
				this.reset();

				var groups = (this.groups = {}), rules;
				$.each(this.settings.groups, function(key, value) {
					if (typeof value === "string") {
						value = value.split(/\s/);
					}
					$.each(value, function(index, name) {
						groups[name] = key;
					});
				});
				rules = this.settings.rules;
				$.each(rules, function(key, value) {
					rules[key] = $.validator.normalizeRule(value);
				});

				function delegate(event) {
					var validator = $.data(this.form, "validator"), eventType = "on" + event.type.replace(/^validate/, ""), settings = validator.settings;
					if (settings[eventType] && !$(this).is(settings.ignore)) {
						settings[eventType].call(validator, this, event);
					}
				}

				$(this.currentForm).on("focusin.validate focusout.validate keyup.validate", ":text, [type='password'], [type='file'], select, textarea, [type='number'], [type='search'], " + "[type='tel'], [type='url'], [type='email'], [type='datetime'], [type='date'], [type='month'], " + "[type='week'], [type='time'], [type='datetime-local'], [type='range'], [type='color'], " + "[type='radio'], [type='checkbox']", delegate)
				// Support: Chrome, oldIE
				// "select" is provided as event.target when clicking a option
				.on("click.validate", "select, option, [type='radio'], [type='checkbox']", delegate);

				if (this.settings.invalidHandler) {
					$(this.currentForm).on("invalid-form.validate", this.settings.invalidHandler);
				}

				// Add aria-required to any Static/Data/Class required fields before first validation
				// Screen readers require this attribute to be present before the initial submission http://www.w3.org/TR/WCAG-TECHS/ARIA2.html
				$(this.currentForm).find("[required], [data-rule-required], .required").attr("aria-required", "true");
			},

			// http://jqueryvalidation.org/Validator.form/
			form : function() {
				this.checkForm();
				$.extend(this.submitted, this.errorMap);
				this.invalid = $.extend({}, this.errorMap);
				if (!this.valid()) {
					$(this.currentForm).triggerHandler("invalid-form", [ this ]);
				}
				this.showErrors();
				return this.valid();
			},

			checkForm : function() {
				this.prepareForm();
				for (var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++) {
					this.check(elements[i]);
				}
				return this.valid();
			},

			// http://jqueryvalidation.org/Validator.element/
			element : function(element) {
				var cleanElement = this.clean(element), checkElement = this.validationTargetFor(cleanElement), result = true;

				this.lastElement = checkElement;

				if (checkElement === undefined) {
					delete this.invalid[cleanElement.name];
				} else {
					this.prepareElement(checkElement);
					this.currentElements = $(checkElement);

					result = this.check(checkElement) !== false;
					if (result) {
						delete this.invalid[checkElement.name];
					} else {
						this.invalid[checkElement.name] = true;
					}
				}
				// Add aria-invalid status for screen readers
				$(element).attr("aria-invalid", !result);

				if (!this.numberOfInvalids()) {
					// Hide error containers on last error
					this.toHide = this.toHide.add(this.containers);
				}
				this.showErrors();
				return result;
			},

			// http://jqueryvalidation.org/Validator.showErrors/
			showErrors : function(errors) {
				if (errors) {
					// add items to error list and map
					$.extend(this.errorMap, errors);
					this.errorList = [];
					for ( var name in errors) {
						this.errorList.push({
							message : errors[name],
							element : this.findByName(name)[0]
						});
					}
					// remove items from success list
					this.successList = $.grep(this.successList, function(element) {
						return !(element.name in errors);
					});
				}
				if (this.settings.showErrors) {
					this.settings.showErrors.call(this, this.errorMap, this.errorList);
				} else {
					this.defaultShowErrors();
				}
			},

			// http://jqueryvalidation.org/Validator.resetForm/
			resetForm : function() {
				if ($.fn.resetForm) {
					$(this.currentForm).resetForm();
				}
				this.submitted = {};
				this.lastElement = null;
				this.prepareForm();
				this.hideErrors();
				var i, elements = this.elements().removeData("previousValue").removeAttr("aria-invalid");

				if (this.settings.unhighlight) {
					for (i = 0; elements[i]; i++) {
						this.settings.unhighlight.call(this, elements[i], this.settings.errorClass, "");
					}
				} else {
					elements.removeClass(this.settings.errorClass);
				}
			},

			numberOfInvalids : function() {
				return this.objectLength(this.invalid);
			},

			objectLength : function(obj) {
				/* jshint unused: false */
				var count = 0, i;
				for (i in obj) {
					count++;
				}
				return count;
			},

			hideErrors : function() {
				this.hideThese(this.toHide);
			},

			hideThese : function(errors) {
				errors.not(this.containers).text("");
				this.addWrapper(errors).hide();
			},

			valid : function() {
				return this.size() === 0;
			},

			size : function() {
				return this.errorList.length;
			},

			focusInvalid : function() {
				if (this.settings.focusInvalid) {
					try {
						$(this.findLastActive() || this.errorList.length && this.errorList[0].element || []).filter(":visible").focus()
						// manually trigger focusin event; without it, focusin handler isn't called, findLastActive won't have anything to find
						.trigger("focusin");
					} catch (e) {
						// ignore IE throwing errors when focusing hidden elements
					}
				}
			},

			findLastActive : function() {
				var lastActive = this.lastActive;
				return lastActive && $.grep(this.errorList, function(n) {
					return n.element.name === lastActive.name;
				}).length === 1 && lastActive;
			},

			elements : function() {
				var validator = this, rulesCache = {};

				// select all valid inputs inside the form (no submit or reset buttons)
				return $(this.currentForm).find("input, select, textarea").not(":submit, :reset, :image, :disabled").not(this.settings.ignore).filter(function() {
					if (!this.name && validator.settings.debug && window.console) {
						console.error("%o has no name assigned", this);
					}

					// select only the first element for each name, and only those with rules specified
					if (this.name in rulesCache || !validator.objectLength($(this).rules())) {
						return false;
					}

					rulesCache[this.name] = true;
					return true;
				});
			},

			clean : function(selector) {
				return $(selector)[0];
			},

			errors : function() {
				var errorClass = this.settings.errorClass.split(" ").join(".");
				return $(this.settings.errorElement + "." + errorClass, this.errorContext);
			},

			reset : function() {
				this.successList = [];
				this.errorList = [];
				this.errorMap = {};
				this.toShow = $([]);
				this.toHide = $([]);
				this.currentElements = $([]);
			},

			prepareForm : function() {
				this.reset();
				this.toHide = this.errors().add(this.containers);
			},

			prepareElement : function(element) {
				this.reset();
				this.toHide = this.errorsFor(element);
			},

			elementValue : function(element) {
				var val, $element = $(element), type = element.type;

				if (type === "radio" || type === "checkbox") {
					return this.findByName(element.name).filter(":checked").val();
				} else if (type === "number" && typeof element.validity !== "undefined") {
					return element.validity.badInput ? false : $element.val();
				}

				val = $element.val();
				if (typeof val === "string") {
					return val.replace(/\r/g, "");
				}
				return val;
			},

			check : function(element) {
				element = this.validationTargetFor(this.clean(element));

				var rules = $(element).rules(), rulesCount = $.map(rules, function(n, i) {
					return i;
				}).length, dependencyMismatch = false, val = this.elementValue(element), result, method, rule;

				for (method in rules) {
					rule = {
						method : method,
						parameters : rules[method]
					};
					try {

						result = $.validator.methods[method].call(this, val, element, rule.parameters);

						// if a method indicates that the field is optional and therefore valid,
						// don't mark it as valid when there are no other rules
						if (result === "dependency-mismatch" && rulesCount === 1) {
							dependencyMismatch = true;
							continue;
						}
						dependencyMismatch = false;

						if (result === "pending") {
							this.toHide = this.toHide.not(this.errorsFor(element));
							return;
						}

						if (!result) {
							this.formatAndAdd(element, rule);
							return false;
						}
					} catch (e) {
						if (this.settings.debug && window.console) {
							console.log("Exception occurred when checking element " + element.id + ", check the '" + rule.method + "' method.", e);
						}
						if (e instanceof TypeError) {
							e.message += ".  Exception occurred when checking element " + element.id + ", check the '" + rule.method + "' method.";
						}

						throw e;
					}
				}
				if (dependencyMismatch) {
					return;
				}
				if (this.objectLength(rules)) {
					this.successList.push(element);
				}
				return true;
			},

			// return the custom message for the given element and validation method
			// specified in the element's HTML5 data attribute
			// return the generic message if present and no method specific message is present
			customDataMessage : function(element, method) {
				return $(element).data("msg" + method.charAt(0).toUpperCase() + method.substring(1).toLowerCase()) || $(element).data("msg");
			},

			// return the custom message for the given element name and validation method
			customMessage : function(name, method) {
				var m = this.settings.messages[name];
				return m && (m.constructor === String ? m : m[method]);
			},

			// return the first defined argument, allowing empty strings
			findDefined : function() {
				for (var i = 0; i < arguments.length; i++) {
					if (arguments[i] !== undefined) {
						return arguments[i];
					}
				}
				return undefined;
			},

			defaultMessage : function(element, method) {
				return this.findDefined(this.customMessage(element.name, method), this.customDataMessage(element, method),
				// title is never undefined, so handle empty string as undefined
				!this.settings.ignoreTitle && element.title || undefined, $.validator.messages[method], "<strong>Warning: No message defined for " + element.name + "</strong>");
			},

			formatAndAdd : function(element, rule) {
				var message = this.defaultMessage(element, rule.method), theregex = /\$?\{(\d+)\}/g;
				if (typeof message === "function") {
					message = message.call(this, rule.parameters, element);
				} else if (theregex.test(message)) {
					message = $.validator.format(message.replace(theregex, "{$1}"), rule.parameters);
				}
				this.errorList.push({
					message : message,
					element : element,
					method : rule.method
				});

				this.errorMap[element.name] = message;
				this.submitted[element.name] = message;
			},

			addWrapper : function(toToggle) {
				if (this.settings.wrapper) {
					toToggle = toToggle.add(toToggle.parent(this.settings.wrapper));
				}
				return toToggle;
			},

			defaultShowErrors : function() {
				var i, elements, error;
				for (i = 0; this.errorList[i]; i++) {
					error = this.errorList[i];
					if (this.settings.highlight) {
						this.settings.highlight.call(this, error.element, this.settings.errorClass, this.settings.validClass);
					}
					this.showLabel(error.element, error.message);
				}
				if (this.errorList.length) {
					this.toShow = this.toShow.add(this.containers);
				}
				if (this.settings.success) {
					for (i = 0; this.successList[i]; i++) {
						this.showLabel(this.successList[i]);
					}
				}
				if (this.settings.unhighlight) {
					for (i = 0, elements = this.validElements(); elements[i]; i++) {
						this.settings.unhighlight.call(this, elements[i], this.settings.errorClass, this.settings.validClass);
					}
				}
				this.toHide = this.toHide.not(this.toShow);
				this.hideErrors();
				this.addWrapper(this.toShow).show();
			},

			validElements : function() {
				return this.currentElements.not(this.invalidElements());
			},

			invalidElements : function() {
				return $(this.errorList).map(function() {
					return this.element;
				});
			},

			showLabel : function(element, message) {
				var place, group, errorID, error = this.errorsFor(element), elementID = this.idOrName(element), describedBy = $(element).attr("aria-describedby");
				if (error.length) {
					// refresh error/success class
					error.removeClass(this.settings.validClass).addClass(this.settings.errorClass);
					// replace message on existing label
					error.html(message);
				} else {
					// create error element
					error = $("<" + this.settings.errorElement + ">").attr("id", elementID + "-error").addClass(this.settings.errorClass).html(message || "");

					// Maintain reference to the element to be placed into the DOM
					place = error;
					if (this.settings.wrapper) {
						// make sure the element is visible, even in IE
						// actually showing the wrapped element is handled elsewhere
						place = error.hide().show().wrap("<" + this.settings.wrapper + "/>").parent();
					}
					if (this.labelContainer.length) {
						this.labelContainer.append(place);
					} else if (this.settings.errorPlacement) {
						this.settings.errorPlacement(place, $(element));
					} else {
						place.insertAfter(element);
					}

					// Link error back to the element
					if (error.is("label")) {
						// If the error is a label, then associate using 'for'
						error.attr("for", elementID);
					} else if (error.parents("label[for='" + elementID + "']").length === 0) {
						// If the element is not a child of an associated label, then it's necessary
						// to explicitly apply aria-describedby

						errorID = error.attr("id").replace(/(:|\.|\[|\]|\$)/g, "\\$1");
						// Respect existing non-error aria-describedby
						if (!describedBy) {
							describedBy = errorID;
						} else if (!describedBy.match(new RegExp("\\b" + errorID + "\\b"))) {
							// Add to end of list if not already present
							describedBy += " " + errorID;
						}
						$(element).attr("aria-describedby", describedBy);

						// If this element is grouped, then assign to all elements in the same group
						group = this.groups[element.name];
						if (group) {
							$.each(this.groups, function(name, testgroup) {
								if (testgroup === group) {
									$("[name='" + name + "']", this.currentForm).attr("aria-describedby", error.attr("id"));
								}
							});
						}
					}
				}
				if (!message && this.settings.success) {
					error.text("");
					if (typeof this.settings.success === "string") {
						error.addClass(this.settings.success);
					} else {
						this.settings.success(error, element);
					}
				}
				this.toShow = this.toShow.add(error);
			},

			errorsFor : function(element) {
				var name = this.idOrName(element), describer = $(element).attr("aria-describedby"), selector = "label[for='" + name + "'], label[for='" + name + "'] *";

				// aria-describedby should directly reference the error element
				if (describer) {
					selector = selector + ", #" + describer.replace(/\s+/g, ", #");
				}
				return this.errors().filter(selector);
			},

			idOrName : function(element) {
				return this.groups[element.name] || (this.checkable(element) ? element.name : element.id || element.name);
			},

			validationTargetFor : function(element) {

				// If radio/checkbox, validate first element in group instead
				if (this.checkable(element)) {
					element = this.findByName(element.name);
				}

				// Always apply ignore filter
				return $(element).not(this.settings.ignore)[0];
			},

			checkable : function(element) {
				return (/radio|checkbox/i).test(element.type);
			},

			findByName : function(name) {
				return $(this.currentForm).find("[name='" + name + "']");
			},

			getLength : function(value, element) {
				switch (element.nodeName.toLowerCase()) {
					case "select":
						return $("option:selected", element).length;
					case "input":
						if (this.checkable(element)) {
							return this.findByName(element.name).filter(":checked").length;
						}
				}
				return value.length;
			},

			depend : function(param, element) {
				return this.dependTypes[typeof param] ? this.dependTypes[typeof param](param, element) : true;
			},

			dependTypes : {
				"boolean" : function(param) {
					return param;
				},
				"string" : function(param, element) {
					return !!$(param, element.form).length;
				},
				"function" : function(param, element) {
					return param(element);
				}
			},

			optional : function(element) {
				var val = this.elementValue(element);
				return !$.validator.methods.required.call(this, val, element) && "dependency-mismatch";
			},

			startRequest : function(element) {
				if (!this.pending[element.name]) {
					this.pendingRequest++;
					this.pending[element.name] = true;
				}
			},

			stopRequest : function(element, valid) {
				this.pendingRequest--;
				// sometimes synchronization fails, make sure pendingRequest is never < 0
				if (this.pendingRequest < 0) {
					this.pendingRequest = 0;
				}
				delete this.pending[element.name];
				if (valid && this.pendingRequest === 0 && this.formSubmitted && this.form()) {
					$(this.currentForm).submit();
					this.formSubmitted = false;
				} else if (!valid && this.pendingRequest === 0 && this.formSubmitted) {
					$(this.currentForm).triggerHandler("invalid-form", [ this ]);
					this.formSubmitted = false;
				}
			},

			previousValue : function(element) {
				return $.data(element, "previousValue") || $.data(element, "previousValue", {
					old : null,
					valid : true,
					message : this.defaultMessage(element, "remote")
				});
			},

			// cleans up all forms and elements, removes validator-specific events
			destroy : function() {
				this.resetForm();

				$(this.currentForm).off(".validate").removeData("validator");
			}

		},

		classRuleSettings : {
			required : {
				required : true
			},
			email : {
				email : true
			},
			url : {
				url : true
			},
			date : {
				date : true
			},
			dateISO : {
				dateISO : true
			},
			number : {
				number : true
			},
			digits : {
				digits : true
			},
			creditcard : {
				creditcard : true
			}
		},

		addClassRules : function(className, rules) {
			if (className.constructor === String) {
				this.classRuleSettings[className] = rules;
			} else {
				$.extend(this.classRuleSettings, className);
			}
		},

		classRules : function(element) {
			var rules = {}, classes = $(element).attr("class");

			if (classes) {
				$.each(classes.split(" "), function() {
					if (this in $.validator.classRuleSettings) {
						$.extend(rules, $.validator.classRuleSettings[this]);
					}
				});
			}
			return rules;
		},

		normalizeAttributeRule : function(rules, type, method, value) {

			// convert the value to a number for number inputs, and for text for backwards compability
			// allows type="date" and others to be compared as strings
			if (/min|max/.test(method) && (type === null || /number|range|text/.test(type))) {
				value = Number(value);

				// Support Opera Mini, which returns NaN for undefined minlength
				if (isNaN(value)) {
					value = undefined;
				}
			}

			if (value || value === 0) {
				rules[method] = value;
			} else if (type === method && type !== "range") {

				// exception: the jquery validate 'range' method
				// does not test for the html5 'range' type
				rules[method] = true;
			}
		},

		attributeRules : function(element) {
			var rules = {}, $element = $(element), type = element.getAttribute("type"), method, value;

			for (method in $.validator.methods) {

				// support for <input required> in both html5 and older browsers
				if (method === "required") {
					value = element.getAttribute(method);

					// Some browsers return an empty string for the required attribute
					// and non-HTML5 browsers might have required="" markup
					if (value === "") {
						value = true;
					}

					// force non-HTML5 browsers to return bool
					value = !!value;
				} else {
					value = $element.attr(method);
				}

				this.normalizeAttributeRule(rules, type, method, value);
			}

			// maxlength may be returned as -1, 2147483647 ( IE ) and 524288 ( safari ) for text inputs
			if (rules.maxlength && /-1|2147483647|524288/.test(rules.maxlength)) {
				delete rules.maxlength;
			}

			return rules;
		},

		dataRules : function(element) {
			var rules = {}, $element = $(element), type = element.getAttribute("type"), method, value;

			for (method in $.validator.methods) {
				value = $element.data("rule" + method.charAt(0).toUpperCase() + method.substring(1).toLowerCase());
				this.normalizeAttributeRule(rules, type, method, value);
			}
			return rules;
		},

		staticRules : function(element) {
			var rules = {}, validator = $.data(element.form, "validator");

			if (validator.settings.rules) {
				rules = $.validator.normalizeRule(validator.settings.rules[element.name]) || {};
			}
			return rules;
		},

		normalizeRules : function(rules, element) {
			// handle dependency check
			$.each(rules, function(prop, val) {
				// ignore rule when param is explicitly false, eg. required:false
				if (val === false) {
					delete rules[prop];
					return;
				}
				if (val.param || val.depends) {
					var keepRule = true;
					switch (typeof val.depends) {
						case "string":
							keepRule = !!$(val.depends, element.form).length;
							break;
						case "function":
							keepRule = val.depends.call(element, element);
							break;
					}
					if (keepRule) {
						rules[prop] = val.param !== undefined ? val.param : true;
					} else {
						delete rules[prop];
					}
				}
			});

			// evaluate parameters
			$.each(rules, function(rule, parameter) {
				rules[rule] = $.isFunction(parameter) ? parameter(element) : parameter;
			});

			// clean number parameters
			$.each([ "minlength", "maxlength" ], function() {
				if (rules[this]) {
					rules[this] = Number(rules[this]);
				}
			});
			$.each([ "rangelength", "range" ], function() {
				var parts;
				if (rules[this]) {
					if ($.isArray(rules[this])) {
						rules[this] = [ Number(rules[this][0]), Number(rules[this][1]) ];
					} else if (typeof rules[this] === "string") {
						parts = rules[this].replace(/[\[\]]/g, "").split(/[\s,]+/);
						rules[this] = [ Number(parts[0]), Number(parts[1]) ];
					}
				}
			});

			if ($.validator.autoCreateRanges) {
				// auto-create ranges
				if (rules.min != null && rules.max != null) {
					rules.range = [ rules.min, rules.max ];
					delete rules.min;
					delete rules.max;
				}
				if (rules.minlength != null && rules.maxlength != null) {
					rules.rangelength = [ rules.minlength, rules.maxlength ];
					delete rules.minlength;
					delete rules.maxlength;
				}
			}

			return rules;
		},

		// Converts a simple string to a {string: true} rule, e.g., "required" to {required:true}
		normalizeRule : function(data) {
			if (typeof data === "string") {
				var transformed = {};
				$.each(data.split(/\s/), function() {
					transformed[this] = true;
				});
				data = transformed;
			}
			return data;
		},

		// http://jqueryvalidation.org/jQuery.validator.addMethod/
		addMethod : function(name, method, message) {
			$.validator.methods[name] = method;
			$.validator.messages[name] = message !== undefined ? message : $.validator.messages[name];
			if (method.length < 3) {
				$.validator.addClassRules(name, $.validator.normalizeRule(name));
			}
		},

		methods : {

			// http://jqueryvalidation.org/required-method/
			required : function(value, element, param) {
				// check if dependency is met
				if (!this.depend(param, element)) {
					return "dependency-mismatch";
				}
				if (element.nodeName.toLowerCase() === "select") {
					// could be an array for select-multiple or a string, both are fine this way
					var val = $(element).val();
					return val && val.length > 0;
				}
				if (this.checkable(element)) {
					return this.getLength(value, element) > 0;
				}
				return value.length > 0;
			},

			// http://jqueryvalidation.org/email-method/
			email : function(value, element) {
				// From https://html.spec.whatwg.org/multipage/forms.html#valid-e-mail-address
				// Retrieved 2014-01-14
				// If you have a problem with this implementation, report a bug against the above spec
				// Or use custom methods to implement your own email validation
				return this.optional(element) || /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/.test(value);
			},

			// http://jqueryvalidation.org/url-method/
			url : function(value, element) {

				// Copyright (c) 2010-2013 Diego Perini, MIT licensed
				// https://gist.github.com/dperini/729294
				// see also https://mathiasbynens.be/demo/url-regex
				// modified to allow protocol-relative URLs
				return this.optional(element)
						|| /^(?:(?:(?:https?|ftp):)?\/\/)(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)(?:\.(?:[a-z\u00a1-\uffff0-9]-*)*[a-z\u00a1-\uffff0-9]+)*(?:\.(?:[a-z\u00a1-\uffff]{2,})).?)(?::\d{2,5})?(?:[/?#]\S*)?$/i.test(value);
			},

			// http://jqueryvalidation.org/date-method/
			date : function(value, element) {
				return this.optional(element) || !/Invalid|NaN/.test(new Date(value).toString());
			},

			// http://jqueryvalidation.org/dateISO-method/
			dateISO : function(value, element) {
				return this.optional(element) || /^\d{4}[\/\-](0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])$/.test(value);
			},

			// http://jqueryvalidation.org/number-method/
			number : function(value, element) {
				return this.optional(element) || /^(?:-?\d+|-?\d{1,3}(?:,\d{3})+)?(?:\.\d+)?$/.test(value);
			},

			// http://jqueryvalidation.org/digits-method/
			digits : function(value, element) {
				return this.optional(element) || /^\d+$/.test(value);
			},

			// http://jqueryvalidation.org/creditcard-method/
			// based on http://en.wikipedia.org/wiki/Luhn_algorithm
			creditcard : function(value, element) {
				if (this.optional(element)) {
					return "dependency-mismatch";
				}
				// accept only spaces, digits and dashes
				if (/[^0-9 \-]+/.test(value)) {
					return false;
				}
				var nCheck = 0, nDigit = 0, bEven = false, n, cDigit;

				value = value.replace(/\D/g, "");

				// Basing min and max length on
				// http://developer.ean.com/general_info/Valid_Credit_Card_Types
				if (value.length < 13 || value.length > 19) {
					return false;
				}

				for (n = value.length - 1; n >= 0; n--) {
					cDigit = value.charAt(n);
					nDigit = parseInt(cDigit, 10);
					if (bEven) {
						if ((nDigit *= 2) > 9) {
							nDigit -= 9;
						}
					}
					nCheck += nDigit;
					bEven = !bEven;
				}

				return (nCheck % 10) === 0;
			},

			// http://jqueryvalidation.org/minlength-method/
			minlength : function(value, element, param) {
				var length = $.isArray(value) ? value.length : this.getLength(value, element);
				return this.optional(element) || length >= param;
			},

			// http://jqueryvalidation.org/maxlength-method/
			maxlength : function(value, element, param) {
				var length = $.isArray(value) ? value.length : this.getLength(value, element);
				return this.optional(element) || length <= param;
			},

			// http://jqueryvalidation.org/rangelength-method/
			rangelength : function(value, element, param) {
				var length = $.isArray(value) ? value.length : this.getLength(value, element);
				return this.optional(element) || (length >= param[0] && length <= param[1]);
			},

			// http://jqueryvalidation.org/min-method/
			min : function(value, element, param) {
				return this.optional(element) || value >= param;
			},

			// http://jqueryvalidation.org/max-method/
			max : function(value, element, param) {
				return this.optional(element) || value <= param;
			},

			// http://jqueryvalidation.org/range-method/
			range : function(value, element, param) {
				return this.optional(element) || (value >= param[0] && value <= param[1]);
			},

			// http://jqueryvalidation.org/equalTo-method/
			equalTo : function(value, element, param) {
				// bind to the blur event of the target in order to revalidate whenever the target field is updated
				// TODO find a way to bind the event just once, avoiding the unbind-rebind overhead
				var target = $(param);
				if (this.settings.onfocusout) {
					target.off(".validate-equalTo").on("blur.validate-equalTo", function() {
						$(element).valid();
					});
				}
				return value === target.val();
			},

			// http://jqueryvalidation.org/remote-method/
			remote : function(value, element, param) {
				if (this.optional(element)) {
					return "dependency-mismatch";
				}

				var previous = this.previousValue(element), validator, data;

				if (!this.settings.messages[element.name]) {
					this.settings.messages[element.name] = {};
				}
				previous.originalMessage = this.settings.messages[element.name].remote;
				this.settings.messages[element.name].remote = previous.message;

				param = typeof param === "string" && {
					url : param
				} || param;

				if (previous.old === value) {
					return previous.valid;
				}

				previous.old = value;
				validator = this;
				this.startRequest(element);
				data = {};
				data[element.name] = value;
				$._ajax($.extend(true, {
					mode : "abort",
					port : "validate" + element.name,
					dataType : "json",
					data : data,
					context : validator.currentForm,
					success : function(response) {
						var valid = response === true || response === "true", errors, message, submitted;

						validator.settings.messages[element.name].remote = previous.originalMessage;
						if (valid) {
							submitted = validator.formSubmitted;
							validator.prepareElement(element);
							validator.formSubmitted = submitted;
							validator.successList.push(element);
							delete validator.invalid[element.name];
							validator.showErrors();
						} else {
							errors = {};
							message = validator.defaultMessage(element, "remote") || response;
							errors[element.name] = previous.message = $.isFunction(message) ? message(value) : message;
							validator.invalid[element.name] = true;
							validator.showErrors(errors);
						}
						previous.valid = valid;
						validator.stopRequest(element, valid);
					}
				}, param));
				return "pending";
			}
		}

	});

	// ajax mode: abort
	// usage: $.ajax({ mode: "abort"[, port: "uniqueport"]});
	// if mode:"abort" is used, the previous request on that port (port can be undefined) is aborted via XMLHttpRequest.abort()

	var pendingRequests = {}, ajax;
	// Use a prefilter if available (1.5+)
	if ($.ajaxPrefilter) {
		$.ajaxPrefilter(function(settings, _, xhr) {
			var port = settings.port;
			if (settings.mode === "abort") {
				if (pendingRequests[port]) {
					pendingRequests[port].abort();
				}
				pendingRequests[port] = xhr;
			}
		});
	} else {
		// Proxy ajax
		ajax = $.ajax;
		$.ajax = function(settings) {
			var mode = ("mode" in settings ? settings : $.ajaxSettings).mode, port = ("port" in settings ? settings : $.ajaxSettings).port;
			if (mode === "abort") {
				if (pendingRequests[port]) {
					pendingRequests[port].abort();
				}
				pendingRequests[port] = ajax.apply(this, arguments);
				return pendingRequests[port];
			}
			return ajax.apply(this, arguments);
		};
	}

}));